Engine-CodesBuick – C0381 Buick

C0381 Buick Code - Range Actuator System Performance High Temperature

Quick Answer

The C0381 Buick diagnostic trouble code (DTC) refers to the Range Actuator System Performance High Temperature. Common causes include Malfunctioning range actuator motor, Faulty range actuator sensor, Wiring issues in the range actuator system. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
C0381 Buick indicates Range Actuator System Performance High Temperature.
Common causes
Common causes include Malfunctioning range actuator motor, Faulty range actuator sensor, Wiring issues in the range actuator system.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Table of contents Created and updated by William Orellana on Sep 19, 2024
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Code C0381 Buick Description

The C0381 Buick diagnostic trouble code (DTC) refers to the Range Actuator System Performance High Temperature. This code indicates that there is an issue with the range actuator system in the vehicle, specifically related to high temperature performance. The range actuator system is responsible for controlling the range selection in the transmission, allowing the vehicle to shift gears smoothly and efficiently.

OBDII Code C0381 Buick - Range Actuator System Performance High Temperature
C0381 Buick Code - Range Actuator System Performance High Temperature

Common Causes of C0381 Buick

  1. Malfunctioning range actuator motor
  2. Faulty range actuator sensor
  3. Wiring issues in the range actuator system
  4. High operating temperatures affecting system performance

Symptoms of C0381 Buick

  1. Rough or delayed gear shifts
  2. Decreased fuel efficiency
  3. Jerking or hesitation during acceleration
  4. Reduced driving comfort

How to Fix C0381 Buick

  1. Begin by diagnosing the specific cause of the C0381 DTC using a diagnostic scanner to pinpoint the issue within the range actuator system.
  2. Inspect the range actuator motor and sensor for any signs of damage or malfunction. Replace any components that are faulty.
  3. Check the wiring in the range actuator system for any shorts, breaks, or loose connections. Repair or replace any damaged wiring.
  4. Clear the DTC from the vehicle's computer system using the diagnostic scanner to reset the transmission control module.
  5. Test drive the vehicle to ensure that the issue has been resolved and that the transmission is shifting smoothly and efficiently.

Cost to Fix C0381 Buick

The typical repair costs for addressing the C0381 Buick code can vary depending on the specific cause of the issue and the extent of the repairs needed. In general, the cost of parts for replacing a range actuator motor or sensor can range from $200 to $500, while the cost of labor for these repairs can range from $150 to $300. Overall, the total repair cost for addressing the C0381 DTC can range from $350 to $800, including parts and labor.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

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